The possibilities offered by lymphography with regard to supplying clear information in respect of prognosis and histology in patients with lymphogranulomatosis, were analysed in 83 patients via retrospective evaluation of clinical data and x-ray findings, using a computer. Disclosure of pathological lymphangiographic changes signifies poor prognosis not requiring further differentiation. Analysis of the pathological storage patterns appears to indicate that these are images of an infiltrative process proceeding in three stages. Solitary filling defects appear first, followed by a lucunar image and, finally, a cystic storage pattern. No different prognostic conclusions can be drawn from the individual stages. No correlation was found between lymphographic storage patterns and histological findings.